Home / 193,133.20-289,440.60-137,664.40

Finding the Fourth Proportional to 193,133.20, 289,440.60 and 137,664.40

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Solution

The fourth proportional to 193,133.20, 289,440.60 and 137,664.40 is: 206,311.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,133.20 : 289,440.60 = 137,664.40 : x
  2. Step 2: Convert to fraction form
    193,133.20/289,440.60 = 137,664.40/x
  3. Step 3: Cross multiply
    193,133.20x = 289,440.60 × 137,664.40
  4. Step 4: Simplify right side
    193,133.20x = 39,845,666,534.64
  5. Step 5: Solve for x
    x = 39,845,666,534.64/193,133.20
  6. Step 6: Final answer
    x = 206,311.84

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.